Reset the drive first, the network settings will be reset to default.
Connect the drive using a ethernet cable directly to the computer.
Open Command Prompt.
Start->Run->CMD.
Ping the drive, To ping type the following in the command prompt.
ping mybookworld
Check if you get reply, If yes Map the drive under my computer. To Map.
Right click my computer->map network drive-> (beside folder) [\mybookworld\publick](file://%5C%5Cmybookworld%5Cpublick) → Finish.